William



Q @auch tatte getter@ `fatte.

WILLIAM B. TUCKER, 0F HILLSBORO, GBIC.

Letfers Patent No. 71,924, dated December 10, 1857.

IMPROVEMENT IN ATTAGHMENIS TO THE REGULATOBS OP WATCHES.

TO ALL WHOW IT MAY CONCERN:

Be it kriown that I, WILLIAM B. TUCKER, of Hillsboro, in the countyoi` Highland, and State of Ohio, have invented anew and useful Attachment to the Regulators of Watches and other time-keepers; v and Ido hereby declare that -the following is a full and exact description thereof, reference being hadto the accompanying drawing, which forms a. portion of this specification. l

For the purpose of more clearly illustrating my said invention, an exaggerated size is given to it in the accompanying drawing, the said drawing being about three .times the usual dimensions of my said improved watch-regulator.

The scale base-plate a b of my improved watch-regulator may be secured to the top plate or half` plate of the watch-movements in any suitable manner. The regulatiugdever d, which is pivoted to the half plate of the movements in the usual manner, carries a toothed segment, e, whose teeth match into the spaces between the turns ofthe thread of the screwarborv, which works in bearing-lugs ff, that rise from the extremities of the portion a ofthe scale base-plate a b. The regulating-lever Z passes under the screw-arbor c, and its pointed extremity extendsto and moves over the division lines of the scale portion b of the scale baseplate a b, and thereby enables the positiouof the said lever to be adjusted to the nicest degree of accuracy.

The regulating-lever dlmay be moved in either direction by turning the screw-arbor c, which can he done by the use of an ordinary watch-key. r, should it be deemed preferable,-motion may he imparted to the Screw-arbor c from a Vertical pnionearhor, and a pinion matching therewith on one ende of' the said screw-arbor.

The matching ofthe toothed segment e with the screw-arbore insures the retention ofthe regulating-lever d in the precise position to which itmay be adjusted.

What I claim as my invention, and desire to secure by Letters Patent, is-

The combination of the screw-arbor c and the toothed segment c with the regulating-lever d and the scale base-plate alb, substantially in the manner and for the purpose herein set forth. v v

The aforegoing specification of my improved attachment-'to the regulators of watches and other time-keepers, signed and witnessed, this 2d day of September, 1867.

WILLIAM B. TUCKER.

Witnesses:

E. T. DE LANY, E. CLEY Barcos. 

